Chevrolet Impala Gas type by year
| Year | Gas type |
|---|---|
| 2020 | Regular (flex-fuel E85 engine available) |
| 2019 | Regular (flex-fuel E85 engine available) |
| 2018 | Regular (flex-fuel E85 engine available) |
| 2017 | Regular (flex-fuel E85 engine available) |
| 2016 | Regular (flex-fuel E85 engine available) |
| 2015 | Regular (flex-fuel E85 engine available) |
| 2014 | Regular (flex-fuel E85 engine available) |
| 2013 | Regular (flex-fuel E85 engine available) |
| 2012 | Regular (flex-fuel E85 engine available) |
| 2011 | Regular (flex-fuel E85 engine available) |
| 2010 | Regular (flex-fuel E85 engine available) |
| 2009 | Regular (flex-fuel E85 engine available) |
| 2008 | Depends on engine: regular or premium (flex-fuel E85 engine available) |
| 2007 | Depends on engine: regular or premium (flex-fuel E85 engine available) |
| 2006 | Depends on engine: regular or premium (flex-fuel E85 engine available) |
| 2005 | Depends on engine: regular or premium |
| 2004 | Depends on engine: regular or premium |
| 2003 | Regular |
| 2002 | Regular |
| 2001 | Regular |
| 2000 | Regular |